Device including a seal assembly

A downhole tool assembly system, the system comprising:

• a tool housing including:
• a housing having a longitudinal dimension;
• a linear actuator including a casing coupled to the housing and an actuator shaft having an exterior surface and configured to be linearly translated along a longitudinal axis relative to the casing;
• a seal assembly engaging the housing and sealingly engaging the exterior surface;
• and
• a motor assembly disposed within the housing, the motor assembly including a motor case and a motor shaft, the motor shaft configured to rotate one of the seal assembly or the actuator shaft;
• wherein the motor case is movably coupled to the housing allowing linear translation of the motor assembly relative to the housing, and the motor shaft is fixedly coupled to the actuator shaft;
• and
• wherein the motor case and the housing include mating splined surfaces.

A device for a downhole system comprising:

• a housing having a longitudinal dimension;
• a linear actuator including a casing coupled to the housing and an actuator shaft having an exterior surface and configured to be longitudinally translated relative to the casing;
• a seal assembly engaging the housing and sealingly engaging the exterior surface;
• and
• a helical cam assembly having a first portion coupled to the actuator shaft and a second portion coupled to the housing, wherein the helical cam rotates the actuator shaft when the actuator shaft is translated;
• wherein the seal assembly includes a seal case, an inner seal sealingly engaging the exterior surface, and an outer seal sealingly engaging an inside surface of the housing;
• and
• wherein the seal assembly is configured to maintain separation of fluids between an interior of the housing and an exterior of the housing.